She's joined by U.S. Senator Heidi Heitkamp as well as Cindy McCain who co- chairs the Arizona Governor's Task Force on Human Trafficking.

Arizona faces unique problems with international trafficking. And some of the most pure and deadly heroin in Minnesota comes up from Mexico.

Senator Klobuchar says this trip is more than brainstorming ideas; it's about pledging continued international cooperation.

"This was really swept under the rug in both of our countries for a long time,” Klobuchar said. “The only way you’re going to take it on is if you admit it's a problem. The fact that they stand with us and admit it's a problem, is the first way you go toward solving it."

Klobuchar recently introduced legislation that would give prosecutors tools to crack down on domestic minor sex trafficking and ensure that victims receive the support they need.